Smoke filter



FIG. 1 is a perspective view from the front left view of a smoke filter.

FIG. 2 is a front view and the back is identical or a mirror image of the front thereof.

FIG. 3 is a top view thereof.

FIG. 4 is a bottom view thereof; and,

FIG. 5 is a side view and the other side is identical thereof.

The broken lines shown in the drawings illustrate portions of the smoke filter that form no part of the claimed design. 

CLAIM The ornamental design for a smoke filter, as shown and described. 